857131416 has 32 divisors (see below), whose sum is σ = 2380921200. Its totient is φ = 285710400.

The previous prime is 857131397. The next prime is 857131463. The reversal of 857131416 is 614131758.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1983885 + ... + 1984316.

Almost surely, 2^857131416 is an apocalyptic number.

It is an amenable number.

857131416 is an abundant number, since it is smaller than the sum of its proper divisors (1523789784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857131416 is a wasteful number, since it uses less digits than its factorization.

857131416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968216 (or 3968206 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 857131416 is about 29276.8067930914. The cubic root of 857131416 is about 949.9100250890.

The spelling of 857131416 in words is "eight hundred fifty-seven million, one hundred thirty-one thousand, four hundred sixteen".